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Technique
Super Critical Fluid Chromatography: Phenomenex
Column chromatography using carbon dioxide (CO2) as a mobile phase
Supercritical Fluid Chromatography (SFC)

In SFC the mobile phase consists of carbon dioxide (CO2) above or near its critical state (temperature >31.1 °C and pressure >73.8 bar) in combination with an organic modifier such as methanol. This relatively non-polar mobile phase can be used with stationary phases typically used in normal or reversed phase HPLC, and the low viscosity and high diffusivity of supercritical CO2 relative to the solvents typically used in HPLC translates into much faster separations. Typically SFC can be used in two modes:

SFC Columns
Brand Description:
Luna High performance silica-based LC columns
Lux Robust polysaccharide chiral HPLC columns
Kinetex Core-shell high efficiency LC columns
Synergi Novel method development LC columns